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Discurria
''Discurria'' is a genus of sea snail. A true limpet, it is a marine gastropod mollusk in the family Lottiidae. Species Species within the genus ''Discurria'' include: * ''Discurria insessa'' * ''Discurria radiata ''Discurria'' is a genus of sea snail. A true limpet, it is a marine gastropod mollusk in the family Lottiidae. Species Species within the genus ''Discurria'' include: * ''Discurria insessa ''Discurria insessa'', common name the seaweed li ...'' References Taxonomicon info File:Discurria insessa 002.jpg, apical view File:Discurria insessa 001.jpg, basal view Lottiidae {{Lottiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discurria Insessa
''Discurria insessa'', common name the seaweed limpet, is a species of sea snail, a true limpet, a marine gastropod mollusk in the family Lottiidae. Description The size of the shell varies between 10 mm and 38 mm. Distribution This marine species occurs from South Alaska to Baja California, Mexico Ecology ''D. insessa'' is believed to live only on '' Egregia menziesii'' (feather boa kelp). Young limpets seem to orient randomly on the stipe but adults are almost always oriented longitudinally along the stipe. ''D. insessa'' feed both on epiphytes and on the ''Egregia'' itself. ''D. insessa'' spawns mainly in spring and summer. There is high mortality during the winter—the largest individuals are usually not more than 1 year old. Larvae settle preferentially on large, crowded, post-reproductive ''Egregia'' and on fronds which already have adults. They grow fastest if they settle on scars made by older limpets. This species runs away quickly if it contacts a seast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discurria Radiata
''Discurria'' is a genus of sea snail. A true limpet, it is a marine gastropod mollusk in the family Lottiidae. Species Species within the genus ''Discurria'' include: * ''Discurria insessa ''Discurria insessa'', common name the seaweed limpet, is a species of sea snail, a true limpet, a marine gastropod mollusk in the family Lottiidae. Description The size of the shell varies between 10 mm and 38 mm. Distribution This ...'' * '' Discurria radiata'' References Taxonomicon info File:Discurria insessa 002.jpg, apical view File:Discurria insessa 001.jpg, basal view Lottiidae {{Lottiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lottiidae
Lottiidae is a family of sea snails, specifically true limpets, marine gastropod mollusks in the superfamily Lottioidea and the clade Patellogastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Subfamilies 2005 taxonomy This family consists of the two following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005): * Lottiinae Gray, 1840 ** tribe Lottiini Gray, 1840 - synonym: Tecturidae Gray, 1847 ** tribe Scurriini Lindberg, 1988 * Patelloidinae Chapman & Gabriel, 1923 2007 taxonomy Nakano & Ozawa (2007)Nakano T. & Ozawa T. (2007). "Worldwide phylogeography of limpets of the order Patellogastropoda: Molecular, morphological and palaeontological evidence". ''Journal of Molluscan Studies'' 73(1) 79-99. . made changes in taxonomy of Patellogastropoda based on molecular phylogeny research: Acmaeidae Forbes, 1850 is a synonym of Lottiidae and assigned genera ''Acmaea'' and '' Niveotectura'' into Lottiidae. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egregia Menziesii
''Egregia menziesii'' is a species of kelp known commonly as feather boa kelp. It is the only species in the monotypic genus ''Egregia''. It is native to the coastline of western North America from Alaska to Baja California, where it is a common kelp of the intertidal zone. Description It is dark brown in color, shiny and bumpy in texture, and may reach over five meters long. It grows a branching stipe from a thick holdfast. It bears long, flat, straplike fronds lined with small blades each a few centimeters long. There are pneumatocysts at intervals along the fronds which provide buoyancy. The alga varies in morphology; the rachis, or central strip, of the frond may be smooth or corrugated, and the blades along the edge of the rachis may be a variety of shapes. File:Mysterious kelp.jpg, Feather Boa File:Seaweed & tidepool, North Moonstone SLO.jpg, Feather Boa growing in tidepool File:Alger, Egregia Menziesii, Nordisk familjebok.png, illustration of ''Egregia menzi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stipe (botany)
In botany, a stipe is a stalk that supports some other structure. The precise meaning is different depending on which taxonomic group is being described. file:Helicteres-Yucatán-Flowers.jpg, The long stipe of a '' Helicteres'' flower. file:Helicteres-Yucatán-Fruits.jpg, remains as each flower forms a fruit. In the case of ferns, the stipe is only the petiole from the rootstock to the beginning of the leaf tissue, or lamina. The continuation of the structure within the lamina is then termed a rachis. In flowering plants, the term is often used in reference to a stalk that sometimes supports a flower's ovary. In orchids, the stipe or caudicle is the stalk-like support of the pollinia. It is a non-viscid band or strap connecting the pollinia with the viscidium (the viscid part of the rostellum or beak). A stipe is also a structure found in organisms that are studied by botanists but that are no longer classified as plants. It may be the stem-like part of the thallus o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California
California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the most populated subnational entity in North America and the 34th most populous in the world. The Greater Los Angeles area and the San Francisco Bay Area are the nation's second and fifth most populous urban regions respectively, with the former having more than 18.7million residents and the latter having over 9.6million. Sacramento is the state's capital, while Los Angeles is the most populous city in the state and the second most populous city in the country. San Francisco is the second most densely populated major city in the country. Los Angeles County is the country's most populous, while San Bernardino County is the largest county by area in the country. California borders Oregon to the north, Nevada and Arizona to the ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David R
David (; , "beloved one") (traditional spelling), , ''Dāwūd''; grc-koi, Δαυΐδ, Dauíd; la, Davidus, David; gez , ዳዊት, ''Dawit''; xcl, Դաւիթ, ''Dawitʿ''; cu, Давíдъ, ''Davidŭ''; possibly meaning "beloved one". was, according to the Hebrew Bible, the third king of the United Kingdom of Israel. In the Books of Samuel, he is described as a young shepherd and harpist who gains fame by slaying Goliath, a champion of the Philistines, in southern Canaan. David becomes a favourite of Saul, the first king of Israel; he also forges a notably close friendship with Jonathan, a son of Saul. However, under the paranoia that David is seeking to usurp the throne, Saul attempts to kill David, forcing the latter to go into hiding and effectively operate as a fugitive for several years. After Saul and Jonathan are both killed in battle against the Philistines, a 30-year-old David is anointed king over all of Israel and Judah. Following his rise to power, David c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Brinsley Hinds
Richard Brinsley Hinds FRCS (11 October 1811, Aldermaston, England25 May 1846, Swan River, Western Australia) was a British naval surgeon, botanist and malacologist. He sailed on the 1835–42 voyage by HMS ''Sulphur'' to explore the Pacific Ocean, and edited the natural history reports of that expedition. Biography Hinds was born at Aldermaston on 11 October 1811, the eldest child of Richard Hinds, a surgeon in the Royal Navy, and his wife, Susannah (née Ridley). In 1829, he began studying at St Bartholomew's Hospital. In 1830, he matriculated at London University, where he gained an honours degree. He is reported to have been awarded the Gold Medal of the Worshipful Society of Apothecaries for botany, but no record of that seems to have survived. In 1833, he was accepted as a Member of the Royal College of Surgeons. On 28 February 1835, he joined the Royal Navy with the rank of Assistant Surgeon, and was appointed to the Royal Naval Hospital, Haslar. On 26 September ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible shell. Definition Determining whether some gastropods should be called sea snails is not always easy. Some species that live in brackish water (such as certain neritids) can be listed as either freshwater snails or marine snails, and some species that live at or just above the high tide level (for example species in the genus '' Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known .... Anatomy Sea snails are a very large group o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limpet
Limpets are a group of aquatic snails that exhibit a conical gastropod shell, shell shape (patelliform) and a strong, muscular foot. Limpets are members of the class Gastropoda, but are polyphyletic, meaning the various groups called "limpets" descended independently from different ancestral gastropods. This general category of conical shell is known as "patelliform" (dish-shaped). All members of the large and ancient marine clade Patellogastropoda are limpets. Within that clade, the members of the Patellidae family in particular are often referred to as "true limpets". Other groups, not in the same family, are also called limpets of one type or another, due to the similarity of their shells' shape. Examples include the Fissurellidae ("keyhole limpet") family, which is part of the Vetigastropoda clade (many other members of the Vetigastropoda do not have the Morphology (biology), morphology of limpets) and the Siphonariidae ("false limpets"), which use a siphon to pump water o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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